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Posted to issues@commons.apache.org by "Nicholas DiPiazza (JIRA)" <ji...@apache.org> on 2015/06/30 08:18:04 UTC
[jira] [Comment Edited] (JXPATH-152) Concurrent access on hashmap
of JXPathIntrospector
[ https://issues.apache.org/jira/browse/JXPATH-152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14607553#comment-14607553 ]
Nicholas DiPiazza edited comment on JXPATH-152 at 6/30/15 6:17 AM:
-------------------------------------------------------------------
Does this issue affect 1.2 release of commons-jxpath library as well?
I am calling org.apache.commons.jxpath.CompiledExpression.getValue(JXPathContext) and I too am seeing hundreds of threads stuck trying to get JXPathIntrospector.getBeanInfo.
I notice only 1.3 is available from the website. When is 1.4 available to the public?
293 threads with trace:
States: {RUNNABLE=293}
Stack:
- java.util.HashMap.getEntry(HashMap.java:465)
- java.util.HashMap.get(HashMap.java:417)
- org.apache.commons.jxpath.JXPathIntrospector.getBeanInfo(JXPathIntrospector.java:101)
- org.apache.commons.jxpath.ri.model.dynamic.DynamicPointerFactory.createNodePointer(DynamicPointerFactory.java:67)
- org.apache.commons.jxpath.ri.model.NodePointer.newChildNodePointer(NodePointer.java:90)
- org.apache.commons.jxpath.ri.model.beans.PropertyPointer.getImmediateValuePointer(PropertyPointer.java:127)
- org.apache.commons.jxpath.ri.model.NodePointer.getValuePointer(NodePointer.java:238)
- org.apache.commons.jxpath.ri.model.beans.PropertyIterator.getNodePointer(PropertyIterator.java:108)
- org.apache.commons.jxpath.ri.axes.ChildContext.getCurrentNodePointer(ChildContext.java:56)
- org.apache.commons.jxpath.ri.axes.InitialContext.<init>(InitialContext.java:39)
- org.apache.commons.jxpath.ri.compiler.LocationPath.compute(LocationPath.java:67)
- org.apache.commons.jxpath.ri.compiler.CoreOperationCompare.equal(CoreOperationCompare.java:49)
- org.apache.commons.jxpath.ri.compiler.CoreOperationEqual.computeValue(CoreOperationEqual.java:33)
- org.apache.commons.jxpath.ri.axes.PredicateContext.nextNode(PredicateContext.java:81)
- org.apache.commons.jxpath.ri.EvalContext.nextSet(EvalContext.java:322)
- org.apache.commons.jxpath.ri.axes.ChildContext.getSingleNodePointer(ChildContext.java:72)
- org.apache.commons.jxpath.ri.compiler.Path.searchForPath(Path.java:183)
- org.apache.commons.jxpath.ri.compiler.Path.getSingleNodePointerForSteps(Path.java:159)
- org.apache.commons.jxpath.ri.compiler.LocationPath.computeValue(LocationPath.java:82)
- org.apache.commons.jxpath.ri.JXPathContextReferenceImpl.getValue(JXPathContextReferenceImpl.java:314)
- org.apache.commons.jxpath.ri.JXPathCompiledExpression.getValue(JXPathCompiledExpression.java:57)
was (Author: ndipiazza):
Does this issue affect 1.2 release of commons-jxpath library as well?
I am calling org.apache.commons.jxpath.CompiledExpression.getValue(JXPathContext) and I too am seeing hundreds of threads stuck trying to get JXPathIntrospector.getBeanInfo.
I notice only 1.3 is available from the website. When is 1.4 available to the public?
293 threads with trace:Rate
States: {RUNNABLE=293}
Stack:
- java.util.HashMap.getEntry(HashMap.java:465)
- java.util.HashMap.get(HashMap.java:417)
- org.apache.commons.jxpath.JXPathIntrospector.getBeanInfo(JXPathIntrospector.java:101)
- org.apache.commons.jxpath.ri.model.dynamic.DynamicPointerFactory.createNodePointer(DynamicPointerFactory.java:67)
- org.apache.commons.jxpath.ri.model.NodePointer.newChildNodePointer(NodePointer.java:90)
- org.apache.commons.jxpath.ri.model.beans.PropertyPointer.getImmediateValuePointer(PropertyPointer.java:127)
- org.apache.commons.jxpath.ri.model.NodePointer.getValuePointer(NodePointer.java:238)
- org.apache.commons.jxpath.ri.model.beans.PropertyIterator.getNodePointer(PropertyIterator.java:108)
- org.apache.commons.jxpath.ri.axes.ChildContext.getCurrentNodePointer(ChildContext.java:56)
- org.apache.commons.jxpath.ri.axes.InitialContext.<init>(InitialContext.java:39)
- org.apache.commons.jxpath.ri.compiler.LocationPath.compute(LocationPath.java:67)
- org.apache.commons.jxpath.ri.compiler.CoreOperationCompare.equal(CoreOperationCompare.java:49)
- org.apache.commons.jxpath.ri.compiler.CoreOperationEqual.computeValue(CoreOperationEqual.java:33)
- org.apache.commons.jxpath.ri.axes.PredicateContext.nextNode(PredicateContext.java:81)
- org.apache.commons.jxpath.ri.EvalContext.nextSet(EvalContext.java:322)
- org.apache.commons.jxpath.ri.axes.ChildContext.getSingleNodePointer(ChildContext.java:72)
- org.apache.commons.jxpath.ri.compiler.Path.searchForPath(Path.java:183)
- org.apache.commons.jxpath.ri.compiler.Path.getSingleNodePointerForSteps(Path.java:159)
- org.apache.commons.jxpath.ri.compiler.LocationPath.computeValue(LocationPath.java:82)
- org.apache.commons.jxpath.ri.JXPathContextReferenceImpl.getValue(JXPathContextReferenceImpl.java:314)
- org.apache.commons.jxpath.ri.JXPathCompiledExpression.getValue(JXPathCompiledExpression.java:57)
> Concurrent access on hashmap of JXPathIntrospector
> --------------------------------------------------
>
> Key: JXPATH-152
> URL: https://issues.apache.org/jira/browse/JXPATH-152
> Project: Commons JXPath
> Issue Type: Bug
> Affects Versions: 1.3
> Environment: Java5, Windows/AIX
> Reporter: pleutre
> Assignee: Matt Benson
> Priority: Minor
> Fix For: 1.4
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> JXPathIntrospector.registerDynamicClass method can be called in static part of classes.
> If two classes A & B try to registerDynamicClass in the same time a concurrent access exception can append on hashmap of JXPathIntrospector.
> Replace hashmap by concurrent hashmap or synchronized access to these hashmaps.
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